Standard test method for analytical procedure for analyzing the effects of partial penetration of control well and determining the horizontal and vertical hydraulic conductivity in a nonleaky confined aquifer 控制井部分渗透效应分析和无泄漏封闭蓄水层的水平和垂直液力传导性测定标准试验方法
When going from 500 degrees to room temperature , the extent to which each material expands and contracts is different , this kind of microchip has a kind of strength , but if that strength is not controlled well it will break 从五百度降低到室温,每个材料热胀冷缩的程度不一样,这样芯片里就有了力,这个力控制不好就会造成破坏。
The output module can set the interval of the laser pulse to change from 50ns to < wp = 5 > 3 . 2ms in steps of 50ns , and the frequency from 500hz to 100khz in steps of 1hz . it can control well the spcm and the input module 输出系统能控制单光子发射时间在50ns到3 . 2ms之间步进50ns可调,发射频率在500hz到100khz之间步进1hz可调,并能很好地控制单光子探测器和数据采集系统的工作。
Based on sand control well productivity prediction , the economic effect evaluation and economic index comparison to all feasible methods in the viewpoint of technology are conducted , and optimum sand control method is synthesized and optimized , which is reasonable in technology , and feasible in economy 摘要在防砂井产能预测的基础上,对所有技术上可行的防砂方法进行经济效果评价和经济指标对比,综合优选出技术上合理、经济上可行的最佳防砂方法。
The basic uneven settlement problem were controlled well , also the anti - liquefied problem of sand layer nearly was solved in this plan . when increasing the basic gravity after the project completion , the proportional lowering of seepage damage of sand in overburden foundation are greatly improved 基础不均匀沉降问题也能得到较好控制,防砂层液化问题也基本解决,在工程完建后增加基础压重的情况下,覆盖层基础中砂层的渗透破坏坡降也大大提高。